Alert archive / Florida / Tornado Warnings in 2011

Tornado Warning 37, NWS Tallahassee, FL

April 28, 2011Lafayette County, Florida

NWS Tallahassee, FL issued this tornado warning at Apr 28, 2011, 12:56 PM EDT for Lafayette County, Florida. It was in force for 34 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 28, 2011, 12:56 PM EDT (16:56 UTC)
Expired
Apr 28, 2011, 1:30 PM EDT
In force
34 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

County Lafayette County, FL

What was reported inside it

TimeReportWhereRemark
Apr 28, 1:20 PM EDTHAIL 11 Wnw Chancey, FLSPOTTER REPORTED QUARTER SIZED HAIL

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 28, 9:47 AM EDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 4.9 hours before the alert went out and 106 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 12:00Z on 2011-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3422 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2011-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 210 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
3422 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
473 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
210 m²/s²
0-3 km storm-relative helicity
208 m²/s²
Significant tornado parameter
3.0
Supercell composite
14.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

186 
WFUS52 KTAE 281656
TORTAE
FLC067-281730-
/O.NEW.KTAE.TO.W.0037.110428T1656Z-110428T1730Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1256 PM EDT THU APR 28 2011

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN LAFAYETTE COUNTY IN FLORIDA...

* UNTIL 130 PM EDT

* AT 1252 PM EDT...A DEVELOPING TORNADO HAS BEEN DETECTED BY THE     
  NATIONAL WEATHER SERVICE NEAR TOWNSEND...OR 4 MILES WEST OF        
  DAY...MOVING EAST AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO      
  BUCKVILLE...DAY...AND CHANCEY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! LEAVE MOBILE HOMES AND VEHICLES FOR SAFER STRUCTURES.
MOVE TO A HALLWAY OR CLOSET ON THE LOWEST FLOOR AWAY FROM WINDOWS AND
OUTSIDE WALLS.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
GOLF BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

&&

LAT...LON 3006 8337 3022 8336 3023 8336 3026 8325
      3023 8324 3018 8324 3017 8323 3012 8322
      3010 8319 3011 8316 3010 8314 3011 8312
      3009 8311
TIME...MOT...LOC 1655Z 257DEG 18KT 3015 8335

$$

38-GODSEY
1 follow-up statement
538 
WWUS52 KTAE 281707
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
107 PM EDT THU APR 28 2011

FLC067-281730-
/O.CON.KTAE.TO.W.0037.000000T0000Z-110428T1730Z/
LAFAYETTE FL-
107 PM EDT THU APR 28 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 PM EDT FOR
NORTHWESTERN LAFAYETTE COUNTY...

AT 104 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADO. THIS TORNADO WAS LOCATED 4 MILES WEST OF 
DAY...MOVING EAST AT 15 MPH.

THE TORNADO WILL BE NEAR...
  BUCKVILLE AND DAY BY 115 PM EDT...
  MAYO JUNCTION AND CHANCEY BY 125 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 PM EDT
THURSDAY AFTERNOON FOR NORTH FLORIDA AND SOUTH CENTRAL GEORGIA.

&&

LAT...LON 3006 8337 3022 8336 3023 8336 3026 8325
      3023 8324 3018 8324 3017 8323 3012 8322
      3010 8319 3011 8316 3010 8314 3011 8312
      3009 8311
TIME...MOT...LOC 1706Z 253DEG 14KT 3017 8334

$$

38-GODSEY

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 28, 4:03 AM EDTSevere Thunderstorm WarningTAEHolmes27 min
Apr 28, 4:27 AM EDTSevere Thunderstorm WarningTAEHolmes, Jackson48 min
Apr 28, 4:31 AM EDTSpecial Marine WarningTAE59 min
Apr 28, 5:22 AM EDTSpecial Weather StatementTAEJackson38 min
Apr 28, 5:51 AM EDTTornado WarningTAEJackson39 min
Apr 28, 7:11 AM EDTSpecial Weather StatementTAEGadsden49 min
Apr 28, 7:45 AM EDTSevere Thunderstorm WarningTAEGadsden, Leon45 min
Apr 28, 8:02 AM EDTTornado WarningTAEGadsden, Leon28 min
Apr 28, 8:21 AM EDTSevere Thunderstorm WarningTAELeon39 min
Apr 28, 8:40 AM EDTSevere Thunderstorm WarningTAELeon, Wakulla50 min
Apr 28, 8:56 AM EDTSevere Thunderstorm WarningTAEJefferson, Leon49 min
Apr 28, 9:16 AM EDTTornado WarningTAELeon, Wakulla29 min
Apr 28, 9:30 AM EDTSevere Thunderstorm WarningTAEJefferson, Madison45 min
Apr 28, 9:45 AM EDTSevere Thunderstorm WarningTAEJefferson, Wakulla60 min
Apr 28, 10:03 AM EDTSevere Thunderstorm WarningTAEJefferson42 min
Apr 28, 10:21 AM EDTSpecial Marine WarningTAE54 min
Apr 28, 10:41 AM EDTSevere Thunderstorm WarningTAEJefferson, Madison49 min
Apr 28, 10:46 AM EDTSevere Thunderstorm WarningTAEJefferson, Taylor44 min
Apr 28, 11:30 AM EDTSpecial Weather StatementTAETaylor60 min
Apr 28, 11:31 AM EDTSpecial Weather StatementTAEMadison29 min
Apr 28, 12:29 PM EDTSpecial Weather StatementTAELafayette61 min
Apr 28, 12:39 PM EDTSevere Thunderstorm WarningTAEMadison21 min
Apr 28, 12:46 PM EDTSevere Thunderstorm WarningTAELafayette, Taylor44 min
Apr 28, 1:29 PM EDTSevere Thunderstorm WarningTAELafayette31 min
Apr 28, 3:42 PM EDTFire Weather WatchTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more12 hr

Nearby

Tornado Warnings in Florida, 2011Every tornado warning in 2011Tornadoes in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.